Electric-current-supplying device



March 16 1926. 1,576,615 L. PAULERO EiLECTRIC CURRENT SUPPLYING DEVICEFiled July 27, 1922 2' Sheets-Sheet 1 3.9 MAMQAAM March 16 1926.

L. PAULERO ELLECTRIC CURRENT SUPPLYING DEVICE Filed July 27. 1922 1 2Sheets-Sheet 2 I7ZU7ZZOTH lioui; Baulera J2 rne Patented 16, 1926. vSTATES PATENT QFFIE. l

EQUIS PAULEBO, OIv PETEBSBUBG, VIRGINIA, ASSIGNOR, TO INDUBTRO-ELECTRIOroons, mg., A CORPORATION OF VIRGINIA.

mCTRIG-OURBENT-BUPPLYING DEVICE.

Application filed July, 1922. Serial Ho 578,016.

To all whom it may concern: Be it known that I, LOUIS PAULERO, a c1t1-zen of the United States, residing at Petersburg, in the county ofDinwiddie and State of Virginia, have invented certain new and is aspeci ation.-

This invention relates to improvements in electriccurrent distributingdevices for sup plying electric current to translating devices such aselectrically operated reciprocating hammers. I

The objects of the invention are, first,,t0

tivel 21 the generator commutator having the our segments 22, 23, 24 and25,- and 26 and 27 the brushes co-operatin'g with the commutator 21. Thecoils 13, 14, and 16 are connected to the commutator segments 22, 23, 24and by wires '28, 29, and 31, and the commutator brushes 26 and 27 areconnected to the field coils 17, 18, 19 and 20 of the generator by wires32 and 33, respectively, in the usual well known manner,

For purposes of illustration in Fig. 1 I

\have shown four armature coils and their four corresponding segments inthe commutator 21, but it will be understood'that more provide a noveland eflicient means for supof these coils and segments will be used inplying from .a single generator electric curactual practice, 1naccordance with the type rent mpulses to two hammers -or other of stanard machine selected.

translating devices to operate them at different speeds by supplying agreater number of impulses to 'one hammer than to the other; second, torovide a means to prevent any material all in voltage when additionalhammers or other devices are cut into the circuits operating devices atdifferent speeds from a common generator; and,

third, to provide anovel means to prevent p the leakage of currentthrough a dead segment of a commutator of the switch device at or aboutthe time that the supplyof current to one coil of a hammer or otherdevice is stopped and the supply of current-to. the other coil thereofis started.

The invention consists of theelements and the combinations of themhereinafter described and claimed.- I

In the accompanying drawings, illustrating the invention Fi re 1 is adiagrammatic view showing the e ements of my electric current distrib--uting device andthe electrical connections thereof.

Figure 2 is a view of the armature of the generator, 'its shaft andthecommutating switch device thereon. I

Figures 3 4 and 5 are transverse sections of the switch device, on lines33, 4-4 and 55 of Fig, 2, respectively.

Figure 6 1s a longitudinal section through the switch device, on line;6-6 of Fig. 4.

Referring to the-drawings, 2 designates the frame of the generator, 7,8, 9 and 10 the magnetic pole pieces, 11 the armature shaft, 12 thearmature, .13, 14, 15 and 16 the armature coils, 17, 18, 19 and 20 theshunt windings on the pole pieces 7, 8, 9 and 10, respec- Theconstruction and o eration of the generator, thus far descri is commonand well known and no detailed description thereof is deemed necessaryherein.

Mounted on the commutator shaft 11 to 7 turn therewith area collectingring 34 and commutators 35 and 36 of a commutating 'switch device forsupplying current imulses from the generatorto two translatmg devices 37and 38. For purposes of illustration I have shown each translatingdevice as the two coaxial solenoid coils of an electric hammer, 39 and40 designating the coils of the hammer 37, and 41 and 42 designating thecoils of the hammer 38.

To maintain the proper voltage in the magnetizing circuits hereinafterdescribed which operate the hammers 37 and 38 or, in other words, toprevert the voltage from dropping whenever the load is put on thegenerator, I provide the generator pole pieces 7, 8, 9 and 10 withseries coils 43, 44, 45 and 46, through which the magnetizing current ispassed after leaving the generator and before reaching the hammers 37and 38,. These series coils are so wound and connected that theysupplement the shunt coils in building up the field of the generator, aswill be hereinafter described.

The collecting ring 34 is a continuous ring formed of brass or othersuitable current conducting material and it is mounted on an insulatingbushing 47' on a sleeve 48 which is fixed on the armature shaft 11, and

, the ring 34 is engaged by a brush 49 which The commutator 35 comprisestwo oppositely-arranged conducting or live segments 50 and 51, and twopairs of interposed nonconducting or dead segments,'52, 52 and 53, 53,arranged posite to each other between theends of t e live segments 50and 51.

. The live se ments each extend around sub- 'oft stantially ninetydegrees or one-. uarter of the commutator and the are e ectricallyconnected by a wire 54. he segments 50, 51, 52 and 53 extend around thebushing 47 and the adjacent ends thereof are slightly separated byinterposed plates or ieces of insulating material 55, as clearly s ownin Fig. 4. The commutator 35 is engaged by two'brushes 56 and 57arranged ninety degrees apart around the commutator and suitably mountedon the frame of the generator.

The commutator 36 comprisesa conducting or live segment 58 extendingsubstantiall around ninety degrees or one quarter he commutator and twodead segments 59, 59 which with insulating plates or pieces 60interposed between the segments 58 and 59 and separating them slightlycom.- plete the commutator ring. The commutator 36 is engaged by twodiametrically opposite brushes 61 and 62 which are suitably mounted onthe generator frame.

It is necessary that the live and dead segments of the two commutators35 and 36 be formed of the same or substantially the same metal, andthat the brushes co-operating therewith shall rest against the adjacentends of two segments at the same time, as the segments succeed oneanother in assing the brushes, for uniform wear. T erefore, to preventthe leakage of current from one coil of 'a hammer to the other coilthereof through a dead segment of either of the c'ommutators 35 and 36at or about the timethat the supply of current to one coil of a hammeris stopped and the fsupply of current to the other coil thereof isstarted,- or at the time the two brushes of either of, the commutators35 and 36 change, one to a live segment and the other to a dead segment,I provide the commutator 36 with two dead segments 59', 59' insulatedfrom each other so that current cannot flow throughthem. from one to theother of the brushes 61 and 62 when the brushes brid e' two pairs ofdead segments 52, 52 and 53,-

53 and insulate. the segments of each pail:-

' from each other for a like purpose of. re-

venting the flow of current through t em fromone to the other of the twobrushes 56 and 57 when they bridge the ends ofa' live segment and thetwo adjacent'end's' of the two pairs of dead segments.

The commutators 35. and 36 surround the bushing 47 and areslightlyseparated and 49, collecting ring 34, wire 70,- segment 2insulated from each other and from the collecting ring 34 longitudinallyof the arma ture shaft 11 by insulating rings 63 separated b metal rings64, as shown in Fig. 6. The co ecting ring 34 and commutators 35 and 36and their interposed spacing rings are clamped together by and between aco lar 65 formed on one end of the sleeve 48 and a head or collar 66screwed on to the other end of the sleeve 48, and insulated from thering 34 and commutator 36 by interposedrings 67 and .68, respectively,of insulating material.

The connections between collecting ring 34 and the commutators 35 and 36of the commutating switch device, and between generator commutator 12are vice to the hammers 37 and 38 are as fol lows ' The brush 49 isconnected to one end of each coil 39 and 40 of the hammer 37 by a wire73,:1nd to one end of each coil 41 and 42 of the hammer 38 by the wire73 and a branch wire 74 leading therefrom. A wire 75 connects the brush57 and one end of the series coil 43, and a wire 76 connects the otherend of the series coil 43 and the end of the hammer coil 39 remote'from.the end thereof connected to the wire 73. A wire 77 connects the, brush56 and one end of the series coil 45, and a,wire 78 connects the otherendof the series coil 45 and the end of'the hammer coil 40-remotefromthe end thereof connected to the wire 73. A wire 79 connects the brush62 and one end of the sei'ieslcoil 44, and a wire 80 connects the otherend of the series coil 44 and the end of the hammer coil 41 remote fromthe end thereof "connected to the wire 74. A wire 81 connects the brush61 and one end of the other end of the series coil 46 and the end of thehammer coil 42 remote fromthe end thereof connected to the wire 74.

During the operation of the generator the courses of the currentimpulses for the translating devices or hammers 37 and 38 are asfollows: p a

For the hammer 37, thecurrent flows 71, so out 51, brush 57 .wire' 75,series coil 43, w re 76, hammer coil 39, wire 73, brus series coil 46,and a wire 82 connects the from the armature 1-2'through wire 28, seg--ment 22 of the generator commutator, wire of the generator commutator,and back to the armature 12-through the wire 29, during one quarterrevolution of the armature 12.

During the next quarter revolution of the armature 12, the current flowsthrough wire '29, segment 23 of the generator commutator,

wire 0, collecting ring 34, brush 49, wire 73, hammer coil 40, wire 78,series coil 45, wire 77, brush 56, segment 50, wire 54, segment 51, wire71, segment 22 of the generator commutator, and back to the armature 12through wire 28'. Thus the hammer coils each receive a current impulsefor one halfrevolution of the armature. During the fOL lowing one halfrevolution of the armature 12, the hammer coils 39 and 40 receive likeimpulses through the same courses, so that the hammer 37 will receivefour impulses during each revolutionof the armature 12. For the hammer38 the current fliows through. wire 28, segment 22 of the generatorcommutator, wire 71, segment 51,'wire 72, segment 58-, brush 62 wire 79,series coil 44, wire 80, hammer coil 41, wires 74 and 73, brush 49,collecting ring 34, wire 70,

segment 23 of the generator commutator, and back to the armature 12through wire 29, within one half revolution of the armature 12 and whilethe se cut 58 is passing under the brush 62. Within the next halfrevolution oijthe armature 12, an'd while the segment 58 is passingunder the brush 61, the current flows through wire 28, seg-. ment 22,wire? 1, segment 51, wire 72, segmeet 58, brush 61, wire 81, series'0011' 46', wire 82, hammer coil 42, wires 74 and 73,

' brush 49, collecting ring'34, wire 70, segment 23 of the generatorcommutatoryand back: to the armature 12 through wire 29. Thus the hammercoils 41 and 42 each re- I ceive a current impulse during eachrevolution of the armature.

It will, now be understood that duringthe operation of the generator,the'coils 39 and 40 of the hammer 37 will receiveimpulges in alternatesuccession causin 'it'splunger to reciprocate, and that the C0118 41 and42' of the hammer 38 will receive impulses in alternate successioncausin its plun ertore-1 ciprocate, and that the coi s of the ammer 38receive two impulses during each revolution of the armature, andthecoils of the hammer 37 receive four impulses; during each revolution ofthe armature, causing the and 38 on the generator;

hammer 38 to operate at one-half the speed of the hammer '37.'- y

' The current passing through the. series coils 43,44, 45 and 46 duringthe operation of'the hammers 37 and 38 supplements the current of theshunt coils 17 18,19-and 20, and-serves to build up the field of thegenerator and prevent a tall in voltage due to the presence of the load:of, the hammers37 The number of turns in the several, series windingsof the generator may be varied, as occasion may r uire, to suit thearticular characteristics 0 the translating evices in ptrgperly buildingup the field of the gener a r.-

I claim as m invention:

1. The com ination of two cl trical translating devices, a generatorhavin a plurality of pairs of pole pieces, a plurality of pairs ofseries windings supplementing the main field windings of the generator,

means forming electric circuits including certain of said serieswindings therein and a commutator for supplying impulses from thegenerator to one of said devices, and means forming electric circuitsincluding. certain of saidseries windings therein and a commutator forsupplying electrical impulses from the generator to the other of saiddevices, one of said means supplying a greater number of impulses to itsseries windings and its translating device per revolution of thegenerator armature than the other.

2. The combination of twoelectrical translating devices, a. generatorhaving a plurality of pairs of le pieces series gs corresgondin i iinumber with'the W111 pole pieces an supplementing the main eld windingsof the generator, 1means' form- 9e electric circuits including, certainof said series windings therein and a commu-- tator for supplyingimpulses from the generator to one "of said devices, and means ioo'forming electric circuits includin certain Of-Sald series windingstherein an a commutator for supplying electrical im ulses fromthegenerator to the other of said devices, one of said means supplying agreater 1 number of impulses to its series windings and its translatingdevice per revolution oi the generatorarmature than the other. 3. Thecombination of two electrical.

translating deviceseach having, two magnectic coils, anleieetricalgenerator series windings supplementing its main field windings, and "itcommutati switch devices carried by the armature sh" of the generatorfor sup lyingthe ding-a with theelectrica impulses dfor supplying thecoils of each translating device with electrical impulses in alternatesuccession and'com rising a collecting rindg' connects "to eachtranslating evice and to a segment of the generator commutator, a "is:commutator provided with,

generator coutator, and adistrihut commutator provided with means toelec trically connectthe coils of the other trans lating device and a:m-ent of the enerator commutator, one cemmutator's mahng. and its elec,tricell connections with its tr ati de- 3% I electrically i are pIIbllliiil?" 1 means to e ectrically connect the coils of onetranslating, device and a. segmentof the a res f m ddistri utin l j &

. tor commutator and two distributing commutators having live segmentselectrically connected vto a. segment of the generator commutator, onedistributin commutator,

having more live segments than the other,

a brush co-operating with the collectingring and electrically connected.to'the coils of each translating device, two brushes 00- operating withone of the distributing commutators and electrically connected withcertain of the series windings and the rea spective coils of onetranslating device, and two brushes co-operating with the otherdistributing commutator and electrically connected with certain of theseries windings and the respective coils of the other translatingdevice.

In testimony whereof I aflix my signature hereto. 7

LOUIS PAULERO.

